<template>
	<view class="preview" v-if="currentInfo">
		<!-- 壁纸集合 -->
		<swiper circular :current = "currentIndex" @change = "swiperChange">
			<swiper-item v-for="(item,index) in classList" :key="item._id">
				<image v-if="readImgs.includes(index)"  @click="maskChange" :src="item.picurl" mode="aspectFill"></image>
			</swiper-item>
		</swiper>
		
		<!-- 主页的一些信息 -->
		<view class="mask">
			<view class="goBack" :style="{top: getStatusBarHeight()+'px'}" @click="goBack">
				<uni-icons  type="back" size="20" color="#fff"></uni-icons>
			</view>
			<view class="count">{{currentIndex+1}} / {{classList.length}}</view>
			<view class="time">
				<uni-dateformat :date="Date.now()" format="hh:mm"></uni-dateformat>
			</view>
			<view class="date">
				<uni-dateformat :date="Date.now()" format="MM月dd日"></uni-dateformat>
			</view>
			<view class="footer" v-if="currentInfo">
				<view class="box" @click="clickInfo">
					<uni-icons type="info" size="23"></uni-icons>
					<view class="text">信息</view>
				</view>
				<view class="box" @click="clickScore">
					<uni-icons type="star" size="23"></uni-icons>
					<view class="text">{{currentInfo.score}}分</view>
				</view>
				<view class="box" @click="clickDownLoad">
					<uni-icons type="download" size="23"></uni-icons>
					<view class="text">下载</view>
				</view>
			</view>
		</view>
		
		{{readImgs}}
		
		<!-- 信息弹出栏 -->
		<uni-popup ref="infoPopup" type="bottom">
			<view class="infoPopup">
				<!-- 头部分 -->
				<view class="popHeader">
					<view class="close1">
						<uni-icons type="closeempty" size="18" color="rgba(0,0,0,0)"></uni-icons>
					</view>
					<view class="title">壁纸信息</view>
					<view class="close2" @click="closeInfoPopup">
						<uni-icons type="closeempty" size="18" color="#999"></uni-icons>
					</view>
				</view>
				
				<!-- 滑动区域 -->
				<scroll-view scroll-y>
					<view class="content">
						<view class="row" >
							<view class="label">壁纸ID：&nbsp;</view>
							<text class="value" selectable>{{currentInfo.classid}}</text>
						</view>
						<view class="row" >
							<view class="label">分类：&nbsp;</view>
							<text class="value class">{{currentInfo.nickname}}</text>
						</view>
						<view class="row" >
							<view class="label">发布者：&nbsp;</view>
							<text class="value">{{currentInfo.nickname}}</text>
						</view>
						<view class="row" >
							<view class="label">评分：&nbsp;</view>
							<view class="value roteBox">
								<uni-rate readonly :value="currentInfo.score"/>
								<text class="score">{{currentInfo.score}}分</text>
							</view>	
						</view>
						<view class="row" >
							<view class="label">摘要：&nbsp;</view>
							<view class="value">
								{{currentInfo.description}}
							</view>		
						</view>
						<view class="row">
							<view class="label">标签：&nbsp;</view>
							<view class="value tabs">
								<view class="tab" v-for="(item,index) in currentInfo.tabs" :key="tab">{{currentInfo.tabs[index]}}</view>
							</view>		
						</view>
						
						<view class="copyright">
							声明：本图片来用户投稿，非商业使用，用于免费学习交流，如侵犯了您的权益，
							您可以拷贝壁纸ID举报至平台，邮箱513894357@qq.com，管理将删除侵权壁
							纸，维护您的权益。
						</view>
						
					</view>
				</scroll-view>
			</view>
		</uni-popup>
	
		<!-- 评分弹出框  -->
		<uni-popup ref="scorePopup" :is-mask-click="false">
			<view class="scorePopup">
				<!-- 头部分 -->
				<view class="popHeader">
					<view class="close1">
						<uni-icons type="closeempty" size="18" color="rgba(0,0,0,0)"></uni-icons>
					</view>
					<view class="title">{{isSocre ? '已经评过分了~' : '壁纸信息'}}</view>
					<view class="close2" @click="closeScorePopup">
						<uni-icons type="closeempty" size="18" color="#999"></uni-icons>
					</view>
				</view>
				<view class="content">
					<uni-rate v-model="userScore" allowHalf :disabled="isSocre"/>
					<text class="text">{{userScore}}分</text>
				</view>
				
				<view class="footer">
					<button  @click="submitScore"  :disabled="!userScore || isSocre" type="default" size="mini" plain>确认评分</button>
				</view>
			</view>
		</uni-popup>
	</view>
</template>

<script setup>
import { ref, ssrContextKey } from 'vue';
import { onLoad } from '@dcloudio/uni-app';
import { getStatusBarHeight } from '@/utils/system.js';
import { apiGetSetupScore , apiWriteDownload} from '@/api/apis.js' 
const maskState = ref(true);
const infoPopup = ref(null);
const scorePopup = ref(null);
const userScore = ref(0);
const currentIndex = ref(0); //当前索引
const readImgs = ref([]);
//信息弹窗
const clickInfo = ()=>{
	infoPopup.value.open();
}

const closeInfoPopup = ()=>{
	infoPopup.value.close();
}

//是否评分
const isSocre = ref(false);
//评分弹窗
const clickScore = ()=>{
	if(currentInfo.value.userScore){
		isSocre.value = true;
		userScore.value = currentInfo.value.userScore;
	}
	scorePopup.value.open();
}
const closeScorePopup = ()=>{
	scorePopup.value.close();
	userScore.value = 0
	isSocre.value = false
}

//隐藏壁纸信息
const maskChange = ()=>{
	maskState.value = !maskState.value;
}	



//返回上一页
const goBack = ()=>{
	uni.navigateBack();
}


//从本地StorageSync中拿到数组storageClassList
const storageClassList = uni.getStorageSync("storageClassList") || [];
const classList = ref([]);
//map遍历
classList.value = storageClassList.map(item=>{
	return {
		...item,
		picurl:item.smallPicurl.replace("_small.webp",".jpg")
	}
})
console.log(classList.value);


const currentId = ref(null);
const currentInfo = ref(null);
//onLoad可以拿到url路径参数
onLoad((e)=>{
	currentId.value = e.id;
	currentIndex.value = classList.value.findIndex(item=>{
		return item._id == currentId.value;
	})
	
	currentInfo.value = classList.value[currentIndex.value];
	
	readImgsFun();
	console.log(currentIndex.value);
})

function readImgsFun(){
	//提前加载前后两张图片
	readImgs.value.push(
		currentIndex.value <= 0 ? classList.value.length-1 : currentIndex.value-1,
		currentIndex.value,
		currentIndex.value >= classList.value.length-1 ? 0 : currentIndex.value+1
		);
	
	// 去重：利用Set自动去重，再转回数组
	readImgs.value = [...new Set(readImgs.value)];
}

//滑块改变@change触发函数
const swiperChange = (e)=>{
	console.log(e)
	currentIndex.value = e.detail.current;
	currentInfo.value = classList.value[currentIndex.value];
	readImgsFun();
}


//确定评分
const submitScore = async()=>{
	let { classid, _id:wallId } = currentInfo.value;
	let res = await apiGetSetupScore({ classid, wallId ,userScore:userScore.value});
	if(res.errCode === 0){
		uni.showToast({
			title:"评分成功",
			icon:"none"
		})
		classList.value[currentIndex.value].userScore = userScore.value;
		uni.setStorageSync("storageClassList",classList.value);
		closeScorePopup();
	}
}

//保存图片
const clickDownLoad = ()=>{
	// #ifdef H5
	uni.showModal({
		content:"请长按保存壁纸",
		showCancel: false
	})
	// #endif
	
	// #ifndef H5
	// 保存图片到相册
	const saveImage = async () => {
	  // 检查图片路径是否存在
	  if (!currentInfo.value?.picurl) {
	    uni.showToast({
	      title: '图片路径不存在',
	      icon: 'none',
	      duration: 2000
	    });
	    return;
	  }
	
	  try {
	    // 显示加载提示
	    uni.showLoading({
	      title: '保存中...',
	      mask: true
	    });
		
		let { classid, _id:wallId } = currentInfo.value;
		let res = await apiWriteDownload({
			classid,
			wallId
		});
		// console.log(res);
	
	    // 获取图片信息
	    const imageInfo = await new Promise((resolve, reject) => {
	      uni.getImageInfo({
	        src: currentInfo.value.picurl,
	        success: resolve,
	        fail: reject
	      });
	    });
	
	    // 保存图片到相册
	    await new Promise((resolve, reject) => {
	      uni.saveImageToPhotosAlbum({
	        filePath: imageInfo.path,
	        success: resolve,
	        fail: reject
	      });
	    });
	
	    // 保存成功提示
	    uni.showToast({
	      title: '图片已保存到相册',
	      icon: 'success',
	      duration: 2000
	    });
	
	  } catch (err) {
	    // 关闭加载提示
	    uni.hideLoading();
	
	    // 处理错误
	    if (err.errMsg.includes('saveImageToPhotosAlbum:fail auth deny')) {
	      // 权限拒绝，引导开启权限
	      uni.showModal({
	        title: '权限提示',
	        content: '需要获取相册权限才能保存图片，是否去设置开启？',
	        confirmText: '去设置',
	        cancelText: '取消',
	        success: (res) => {
	          if (res.confirm) {
	            uni.openSetting({
	              success: (settingRes) => {
	                // 可以在这里判断用户是否开启了权限
	                if (settingRes.authSetting['scope.writePhotosAlbum']) {
	                  uni.showToast({
	                    title: '权限已开启，可重新保存',
	                    icon: 'none'
	                  });
	                }
	              }
	            });
	          }
	        }
	      });
	    } else if (err.errMsg.includes('getImageInfo:fail')) {
	      // 图片信息获取失败
	      uni.showToast({
	        title: '图片加载失败，请重试',
	        icon: 'none',
	        duration: 2000
	      });
	      console.error('获取图片信息失败:', err);
	    } else {
	      // 其他错误
	      uni.showToast({
	        title: '保存失败，请重试',
	        icon: 'none',
	        duration: 2000
	      });
	      console.error('保存图片失败:', err);
	    }
	  } finally {
	    // 确保加载提示关闭
	    uni.hideLoading();
	  }
	};
	saveImage();
	// #endif

}

</script>

<style lang="scss" scoped>
.preview{
	width: 100%;
	height: 100vh;
	position: relative;
	swiper{
		width: 100%;
		height: 100%;
		image{
			width: 100%;
			height: 100%;
		}
	}
	.mask{
		&>view{
			position: absolute;
			left: 0;
			right: 0;
			margin: auto;
			width: fit-content;
			color: #fff;
		}
		.goBack{
			width:38px;
			height:38px;
			background:rgba(0,0,0, 0.5);
			left:30rpx;
			margin-left:0;
			border-radius: 100px;
			top: 50rpx;
			backdrop-filter:blur(10rpx);
			border:1rpx solid rgba(255,255,255,0.3);
			display: flex;
			align-items: center;
			justify-content: center;
		}
		.count{	
			top: 10vh;
			background: rgba(0,0,0,0.3);
			font-size: 28rpx;
			border-radius: 40rpx;
			padding: 8rpx 28rpx;
			backdrop-filter: blur(10rpx);
		}
		.time{
			top: calc(10vh + 65rpx);
			font-size: 140rpx;
			font-weight: 100;
			line-height: 1em;
			text-shadow: 0 4rpx rgba(0,0,0,0.3);
			
		}
		.date{
			font-size: 34rpx;
			top: calc(10vh + 230rpx);
			text-shadow: 0 2rpx rgba(0,0,0,0.3);
		}
		.footer{
			background-color: rgba(255,255,255,0.8);
			bottom: 10vh;	
			width: 65vw;
			height: 120rpx;
			border-radius: 120rpx;
			color: #000;
			display: flex;
			justify-content: space-around;
			align-items: center;
			box-shadow: 0 2rpx rgba(0,0,0,0.1);
			backdrop-filter: blur(20rpx);
			.box{
				display: flex;
				flex-direction: column;
				justify-content: center;
				align-items: center;
				padding: 2rpx 12rpx;
				.text{
					font-size: 28rpx;
					color: #676767;
				}
			}
		}
	}
	.popHeader{
		display: flex;
		justify-content: space-between;
		align-items: center;
		.title{
			color: $text-font-color-2;
			font-size: 26rpx;
		}
		.close2{
			padding: 6rpx; //增加手指触摸范围
		}
	}
	.infoPopup{
		background: #fff;
		padding: 30rpx;
		border-radius: 30rpx 30rpx 0 0;
		overflow: hidden;
		scroll-view{
			max-height: 60vh;
			.content{
				.row{
					display: flex;	
					padding: 16rpx 0;
					font-size: 32rpx;
					line-height: 1.7em;
					.label{
						color: $text-font-color-3;
						width: 140rpx;
						text-align: right; //右对齐
						font-size: 30rpx
					}
					.value{
						flex: 1;
						width: 0;
					}
					.roteBox{	
						display: flex;
						align-items: center;
						.score{
							font-size: 26rpx;
							color: $text-font-color-2;
							padding-left: 10rpx;
						}
					}
					.tabs{
						display: flex;
						flex-wrap: wrap; //自动换行
						.tab{
							border: 1px solid $brand-theme-color;
							color: $brand-theme-color;
							font-size: 22rpx;
							padding: 10rpx 30rpx;
							border-radius: 40rpx;
							line-height: 1em;
							margin: 0 10rpx 10rpx 0;
						}
					}
					.class{
						color: $brand-theme-color;
					}
				}
				.copyright{
					font-size: 28rpx;
					padding: 20rpx;
					background: #F6F6F6;
					color: #666;
					border-radius: 10rpx;
					margin: 20rpx 0;
					line-height: 1.6em;
				}
			}
		}
	}
	.scorePopup{
		background: #fff;
		padding: 30rpx;
		width: 70vw;
		border-radius: 30rpx;
		.content{
			padding: 30rpx 0;
			display: flex;
			justify-content: center;
			align-items: center;
			.text{
				color: #FFCA3E;
				padding-left: 10rpx;
				width: 80rpx;
				line-height: 1em;
				text-align: right;
			}
		}
		.footer{
			padding: 10rpx 0;
			display: flex;
			justify-content: center;
			align-items: center;
		}
	}
}
</style>
